CN105254912B - Release film, preparation method and the organosilicon composite sheet comprising release film - Google Patents
Release film, preparation method and the organosilicon composite sheet comprising release film Download PDFInfo
- Publication number
- CN105254912B CN105254912B CN201510717951.5A CN201510717951A CN105254912B CN 105254912 B CN105254912 B CN 105254912B CN 201510717951 A CN201510717951 A CN 201510717951A CN 105254912 B CN105254912 B CN 105254912B
- Authority
- CN
- China
- Prior art keywords
- surfactant
- release film
- release
- layer
- composite sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The present invention discloses a kind of release film, preparation method and the organosilicon composite sheet comprising release film, release film, including ground and the release layer for being attached to surface of bottom material, and the release layer is the thin layer formed by surfactant；The surfactant is one kind in anion surfactant, cationic surfactant, nonionic surfactant and amphoteric surfactant, or the compounding of several surfactants, release layer is prepared on ground with surfactant, up to release film, by the compound rear solidification of release film and silica-gel composition calendering, the organosilicon composite sheet for including release film is obtained.The release film of the present invention includes the release layer prepared by surfactant, and to the release significant effect of organosilicon material, and preparation method is simple.
Description
Technical field
The present invention relates to a kind of release film, preparation method and organosilicon composite sheets comprising release film.
Technical background
Organosilicon material has high-low temperature resistant, electric insulation, resistance to oxidation stability, weatherability, fire retardant, corrosion-resistant etc. excellent
Characteristic is used widely in chemical field.In heat conduction technical field, the heat-conducting interface material containing organosilicon is main leads
Hot material kind, mainly in the electrical apparatus heating position and heat dissipation position between be filled, play heat transfer, sealing and absolutely
Edge function, wherein silica gel piece have the characteristics that easy to use, good heat conduction effect.In order to improve filling of the silica gel piece to heat dissipation interface
Effect improves radiating efficiency, and silica gel piece is generally required to have lower hardness, to deform when being squeezed, to boundary
Face gap is filled, as a result, silica gel piece prepare be molded after and using preceding needs on two sides be covered with release film, to silica gel piece into
Row is protected from pollution, and the release film for being used for silica gel piece in the prior art generally includes the release film of silicone oil release layer, but silicon
Oily release layer is close with organosilicon material property, and the two has certain compatibility, causes the peeling force of release film big, release effect
Fruit is bad.
Invention content
In view of the above shortcomings of the prior art, the present invention provides a kind of release film, preparation method and includes release film
Organosilicon composite sheet, release film of the invention includes the release layer prepared by surfactant, to organosilicon material
Release significant effect, and preparation method is simple.
The purpose of the present invention is achieved through the following technical solutions：
A kind of release film, including ground and the release layer for being attached to surface of bottom material, the release layer is by surfactant
The thin layer of formation；
The surfactant be anion surfactant, cationic surfactant, nonionic surfactant and
The compounding of one or more of amphoteric surfactant.
The surfactant be anion surfactant, cationic surfactant, nonionic surfactant and
The compounding of one kind or several surfactants in amphoteric surfactant, in practice with a variety of surfactant compounds
When surfactant between do not occur chemical reaction or other interaction, do not cause surfactant to lose surface-active, wrap
It includes anion surfactant and nonionic surfactant compounding, anion surfactant and amphoteric surfactant is multiple
Match, cationic surfactant and nonionic surfactant compounding, cationic surfactant and amphoteric surfactant are answered
Match, the compoundings mode such as the compounding of anion surfactant and nonionic surfactant and amphoteric surfactant.
For surfactant specific type there is no specifically limited, anion surfactant can enumerate stearic acid
Sodium, neopelex, oleoyl oxygroup ethanesulfonic acid sodium, amber acid diester sulfonate, nekal, to methoxyl group
Fatty acyl amido benzene sulfonic acid sodium salt, NaLS, polyoxyethylene alkyl ether sulfate salt, oleyl alcohol sulfate, didecyl phosphorus
Acid diester salt, alkyl alcohol ethoxylates phosphate ester salt, lauryl sodium sulfate, enuatrol, potassium oleate etc., cationic surface are lived
Property agent can enumerate polyethylene polyamines salt, quaternary ammonium salt cationic surfactant, and nonionic surface active agent can enumerate diethyl
Glycol monolaurate, octyl phenol polyoxyethylene ether, nonylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether, aliphatic acid polyoxy
Vinyl acetate, sorbitan fatty acid ester, Aceonon 300 MO, trihydroxy ethylamine oleate soap, is gathered castor oil polyoxyethylene ether
Ethylene oxide sorbitan fatty acid ester etc., amphoteric surfactant can enumerate dodecyl ethyoxyl sulfobetaines, 12
Alkyl dimethyl hydroxypropyl sulfobetaines, myristamide propyl hydroxypropyl sulfobetaines, alkyl dimethyl hydroxypropyl phosphorus
Sour fat glycine betaine, octadecyl dihydroxy ethyl amine oxide, myristyl dihydroxy ethyl amine oxide, stearamide propyl amine oxide,
Cocamidopropyl propyl amide amine oxide etc..
Preferably, the surfactant be anion surfactant or nonionic surface active agent, or by the moon from
Sub- surfactant compounds to obtain with nonionic surfactant, and specific compound proportion is not particularly limited.
It is highly preferred that the surfactant is compounded to obtain by anion surfactant and nonionic surfactant.
Preferably, the HLB value of the surfactant is 5~40, more preferably 8~16.Surfactant is compounding
When obtaining, the HLB value is the HLB value after compounding, and calculation is：As surfactant is compounded to obtain by A, B, C, and A, B,
The mass percent of C is respectively a, b, c (a+b+c=100%), and the HLB value of A, B, C are respectively x, y, z, then the HLB after compounding
Value=a × x+b × y+c × z.
The ground is not particularly limited, including film resin ground, and can be latticed or surface has specific stripes
Film can enumerate acrylic resin films, phenolic resin film, epoxy resin thin film, polycarbonate resin film, gather to benzene two
Formic acid butanediol ester resin film, polyester resin film and polyethylene film, are not particularly limited the thickness of ground, to described
Ground can be pre-processed before use according to the prior art, including corona etc., improve surfactant on surface of bottom material
Adsorption effect.
The preparation method of the release film is that surfactant is coated on surface of bottom material to form release layer, obtain from
Type film, or surfactant solution is coated on surface of bottom material, release layer is formed after drying and removing solvent, is obtained release
Film.
In the preparation method, the ground is identical as aforementioned ground, the surfactant and aforementioned surfactants
Identical, surfactant is anion surfactant, cationic surfactant, nonionic surfactant and amphoteric surface
The compounding of one or more of activating agent is not changed when using different surfaces activating agent compounding between surfactant
Learning reaction or other causes surfactant rotten or deactivated interaction.
In practice, in order to keep release layer that surfactant is formed in bottom surface uniform and thickness is controllable, by surface
Activating agent is coated with after being configured to certain density surfactant solution, and re-dry removes solvent.It is pointed out that table
Face activator solution should be transparent uniform solution, wherein there is no precipitation, muddy or layering, in process for preparation and drying not
Chemical reaction or other effects occur, surfactant will not be made rotten or lose surface-active, the solvent in configuration process
Selection is to be carried out according to the type of specific surfactant, such as have hydrophilic part cloudy more than 10 HLB value
Water can be used as solvent in ionic surface active agent, and is less than 10 lipophilic anion surfactant for HLB value,
Water may be used and belong to the prior art with ethyl alcohol or the mixed solvent of isopropanol, the preparation method of this surfactant solution.
It is described surfactant or surfactant solution are coated on the coating method on surface of bottom material to include but unlimited
In brushing, spraying etc., surfactant is set to form uniform coating in surface of bottom material by coating.In concrete operations, coating weight root
According to required release effect and layer of silica gel property adjustments, the coating weight of preferred surfactant is (0.2-0.6) g/m2。
The condition of the drying is not particularly limited, and does not influence the property of ground and surfactant.
The present invention further provides the organosilicon composite sheet including release film, including release film and layer of silica gel, it is described from
Type film includes ground and is attached to the release layer of surface of bottom material, and the release layer is the thin layer formed by surfactant；
The surfactant be anion surfactant, cationic surfactant, nonionic surfactant and
The compounding of one or more of amphoteric surfactant；
Release layer in the release film is contacted with layer of silica gel, and the layer of silica gel is by including organic poly- silica containing vinyl
The component of the silicone rubber compound of alkane, crosslinking agent and silicon hydrogenation catalyst is prepared.
The surfactant is identical as aforementioned surfactants, is anion surfactant, cation surface activating
The compounding of one or more of agent, nonionic surfactant and amphoteric surfactant, when using different surfaces activating agent
Chemical reaction or other does not occur when compounding, between surfactant to be caused surfactant rotten or loses the phase of surface-active
Interaction.
The ground is identical as aforementioned ground.
In the organosilicon composite sheet including release film of the present invention, release film uses surfactant for release layer material
Material makes release film have low peeling force to layer of silica gel, reaches light peeling effect.
The organosilicon composite sheet including release film is prepared by method comprising the following steps：
A, surfactant is coated on surface of bottom material and forms release layer, obtain release film, or by surfactant
Solution coating forms release layer after drying and removing solvent, obtains release film on surface of bottom material；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, so that release layer is contacted with mixture, it is then compound through rolling, so that mixture is formed layer of silica gel between two release films, Gu
Change, obtain include release film organosilicon composite sheet.
In the preparation method, specific calendering and curing operation are not particularly limited.
Thickness, hardness of the layer of silica gel etc. are not particularly limited.
In the silicone rubber compound, the organopolysiloxane containing vinyl be molecule in containing two or more with
The position of the organopolysiloxane of the vinyl of silicon connection, vinyl can be side group or be located at molecular end and side chain simultaneously
On.Preferably, the organopolysiloxane medium vinyl content containing vinyl is 0.03-5%, and 25 DEG C of viscosity is 50-
50000mPa·s。
Organopolysiloxane containing vinyl described in silicone rubber compound can enumerate α, ω-divinyl polydimethyl silicon
The poly- methyl of oxygen alkane, the dimethyl silicone polymer of methyl phenyl vinyl siloxy sealing end, dimethylvinyl siloxy sealing end
The copolymer for the methyl phenyl siloxane and dimethyl siloxane that phenyl siloxane, dimethylvinyl siloxy block.
The crosslinking agent is hydrogeneous organopolysiloxane, has at least three si-h bonds, and the position of si-h bond in molecule
Set can be side group or simultaneously be located at molecular end and side chain on, be preferably placed on side chain.Preferably crosslinking agent hydrogen content is
0.01%-0.3% (quality), the present invention in hydrogen content be crosslinking agent si-h bond in hydrogen atom mass percent, at 25 DEG C
Viscosity is 10-1000mPas, more preferably 30-300mPas.
Crosslinking agent can enumerate the methyl hydrogen of the polymethyl hydrogen siloxane of trimethylsiloxy group sealing end, trimethylsiloxy group sealing end
The methyl hydrogen siloxane and methyl phenyl siloxane of the copolymer of siloxanes and dimethyl siloxane, dimethyl hydrogen siloxy sealing end
Copolymer, dimethyl hydrogen siloxy sealing end methyl hydrogen siloxane and dimethyl siloxane copolymer etc..
Preferably, the silicone rubber compound includes filler, and filler includes heat filling, extending fillers, color stuffing etc., kind
Class according to specific needs depending on, it is furthermore preferred that the silicone rubber compound includes heat filling, heat filling is magnesia, oxygen
Change one or more of aluminium, iron oxide, calcium oxide, titanium oxide, silica, aluminium nitride, boron nitride and silicon nitride, it is described to lead
The grain size of hot filler is not particularly limited.
The vinyl and crosslinking agent that the silicon hydrogenation catalyst is used to be catalyzed in the organopolysiloxane containing vinyl
In silicon hydrogen-based between hydrosilylation reactions, specific type and dosage be not particularly limited, type include platinum-type catalyst,
Rhodium class catalyst and palladium class catalyst, preferably platinum-type catalyst, platinum-type catalyst can enumerate platinum micro mist, platinum black, chloroplatinic acid, tetrachloro
Change platinum, the platinum complex of alkene, the platinum complex of carbonyl or the thermoplasticity organic resin powder containing the above platinum group catalyst, more
Preferably platinum catalyst or chloroplatinic acid.
It is furthermore preferred that the silicon hydrogenation catalyst is platinum-type catalyst, and in the molecular structure of surfactant not
Contain primary amine groups (- NH2)。
Preferably, in the silicone rubber compound, the mole of hydrogen-based and organic poly- silica containing vinyl in crosslinking agent
The ratio between mole of alkane medium vinyl is (0.4~1)：1.
Preferably, the silicone rubber compound includes heat filling, and the silicon hydrogenation in the silicone rubber compound is urged
Agent is platinum-type catalyst, and the silicone rubber compound includes the following component counted in parts by weight：
It is furthermore preferred that the silicone rubber compound includes heat filling, the silicon hydrogenation in the silicone rubber compound
Catalyst is platinum-type catalyst, and the silicone rubber compound includes the following component counted in parts by weight：
It may be noted that 25 DEG C of viscosity of the present invention is dynamic viscosity value of the substance at 25 DEG C.
The beneficial effects of the invention are as follows：The release film of the present invention includes the release layer prepared by surfactant, to having
The release significant effect of machine silicon chip material, and preparation method is simple.
Specific implementation mode
Specific embodiments of the present invention are given below.
Substance in the silicone rubber compound for the organosilicon composite sheet use for including release film is prepared in Examples 1 to 4
The dosage that dosage and comparative example are used to prepare substance in the silicone rubber compound of comparison sheet is shown in Table 1, and unit is mass parts
Number.
Table 1
Embodiment 1
In the silicone rubber compound of the present embodiment, the organopolysiloxane containing vinyl is α, the poly- diformazan of ω-divinyl
Radical siloxane is 100mPas in 25 DEG C of viscositys, and the mass percentage of vinyl is 2.0%；Heat filling is average grain diameter
For 30 μm of aluminium oxide；Crosslinking agent is Methyl Hydrogen Polysiloxane Fluid, and 25 DEG C of viscositys are 100mPas, and hydrogen content is 0.2% (quality),
Platinum-type catalyst is platinum catalyst.
The preparation method of organosilicon composite sheet including release film is：
A, by 100g octyl phenol polyoxyethylene ether OP-13 (HLB value 14, Jiangsu Hai'an Petrochemical Plant) and 500g water
It is uniformly mixed, obtains surfactant solution, surfactant solution is coated on to the table of PET film (thickness 0.050mm)
On face, at 75 DEG C, baking 20min is complete to moisture evaporation, forms release layer, is cooled to room temperature, obtains release film, surface-active
The dosage of agent is 0.3g/m2；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, and release layer is made to be contacted with mixture, then roll compound, mixture is made to form layer of silica gel between two release films,
80 DEG C solidification 20min, be cooled to room temperature, obtain include release film organosilicon composite sheet, thickness 2.1mm, according to standard
The shore OO hardness of ASTM D2240 test layer of silica gel is 60.
Embodiment 2
In the silicone rubber compound of the present embodiment, the organopolysiloxane containing vinyl is α, the poly- diformazan of ω-divinyl
Radical siloxane is 40000mPas in 25 DEG C of viscositys, and the mass percentage of vinyl is 0.2%；Heat filling is average grain
The aluminium nitride that diameter is 20 μm；Crosslinking agent is Methyl Hydrogen Polysiloxane Fluid, and 25 DEG C of viscositys are 1000mPas, and hydrogen content is 0.03% (matter
Amount), platinum-type catalyst is platinum catalyst.
The preparation method of organosilicon composite sheet including release film is：
A, 100g neopelexes (HLB value 10.6) are uniformly mixed with 800g water, obtain surfactant
Surfactant solution is coated on the surface of PET film (thickness 0.075mm) by solution, and 25min is toasted at 70 DEG C to water
Divide volatilization complete, form release layer, be cooled to room temperature, obtains release film, the dosage of surfactant is 0.4g/m2；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, and release layer is made to be contacted with mixture, then roll compound, mixture is made to form layer of silica gel between two release films,
70 DEG C solidification 30min, be cooled to room temperature, obtain include release film organosilicon composite sheet, thickness 4.15mm, according to standard
The shore OO hardness of ASTM D2240 test layer of silica gel is 35.
Embodiment 3
In the silicone rubber compound of the present embodiment, the organopolysiloxane containing vinyl is α, the poly- diformazan of ω-divinyl
Radical siloxane is 1000mPas in 25 DEG C of viscositys, and the mass percentage of vinyl is 0.5%；Heat filling is average grain
The aluminium oxide in mass ratio 2 that the aluminium oxide and average grain diameter that diameter is 3 μm are 50 μm：3 are mixed to get；Crosslinking agent is methyl hydrogen silicon
Oil, 25 DEG C of viscositys are 300mPas, and hydrogen content is 0.07% (quality), and platinum-type catalyst is platinum catalyst.
The preparation method of organosilicon composite sheet including release film is：
A, by 100g fatty alcohol polyoxyethylene ether AEO-9 (HLB value 12.5, Jitian Chemical Co., Ltd. of Shenzhen) with
550g water is uniformly mixed, and obtains surfactant solution, and surfactant solution is coated on PET film, and (thickness is
On surface 0.100mm), at 65 DEG C, baking 35min is complete to moisture evaporation, forms release layer, is cooled to room temperature, obtains release
The amount of film, release film upper surface activating agent is 0.5g/m2；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, and release layer is made to be contacted with mixture, then roll compound, mixture is made to form layer of silica gel between two release films,
85 DEG C solidification 10min, obtain include release film organosilicon composite sheet, thickness 0.7mm, according to standard ASTM D2240 survey
The shore OO hardness for trying layer of silica gel is 45.
Embodiment 4
In the silicone rubber compound of the present embodiment, the organopolysiloxane containing vinyl is α, the poly- diformazan of ω-divinyl
Radical siloxane is 1000mPas in 25 DEG C of viscositys, and the mass percentage of vinyl is 0.5%；Heat filling is average grain
The aluminium oxide in mass ratio 2 that the aluminium oxide and average grain diameter that diameter is 3 μm are 50 μm：3 are mixed to get；Crosslinking agent is methyl hydrogen silicon
Oil, 25 DEG C of viscositys are 300mPas, and hydrogen content is 0.06% (quality), and platinum-type catalyst is platinum catalyst.
The preparation method of organosilicon composite sheet including release film is：
A, by 50g octyl phenol polyoxyethylene ether OP-13 (HLB value 14, Jiangsu Hai'an Petrochemical Plant), 50g 12
Sodium alkyl benzene sulfonate (HLB value 10.6, Guangzhou You Qi Chemical Co., Ltd.s) is uniformly mixed with 600g water, obtains surface-active
Surfactant solution is coated on the surface of PET film (thickness 0.075mm) by agent solution, and 40min is toasted extremely at 60 DEG C
Moisture evaporation is complete, forms release layer, is cooled to room temperature, and obtains release film, the amount of release film upper surface activating agent is 0.25g/
m2, wherein the HLB value after surfactant compound is 12.3；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, and release layer is made to be contacted with mixture, then roll compound, mixture is made to form layer of silica gel between two release films,
85 DEG C solidification 10min, obtain include release film organosilicon composite sheet, thickness 2.15mm, according to standard ASTM D2240
The shore OO hardness for testing layer of silica gel is 78.
Embodiment 5
The present embodiment is using the organosilicon composite sheet that silicone rubber compound preparation same as Example 4 includes release film
Material, specific method are：
A, by 50g castor oil polyoxyethylene ethers EL-10 (HLB value 6.4, Xingtai blue star auxiliary reagent factory), 50g anhydrous sorbitols
Aliphatic ester Span S-40 (HLB value 6.7, Jiangsu Hai'an Petrochemical Plant) are uniformly mixed with 200g water, 200g ethyl alcohol,
Surfactant solution is obtained, surfactant solution is coated on the surface of PET film (thickness 0.075mm), 80
DEG C baking 40min it is complete to moisture evaporation, formed release layer, be cooled to room temperature, obtain release film, release film upper surface activating agent
Amount be 0.35g/m2, wherein the HLB value after surfactant compound is 6.55；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, and release layer is made to be contacted with mixture, then roll compound, mixture is made to form layer of silica gel between two release films,
85 DEG C solidification 10min, obtain include release film organosilicon composite sheet, thickness 2.15mm, according to standard ASTM D2240
The shore OO hardness for testing layer of silica gel is 78.
Embodiment 6
The present embodiment is using the organosilicon composite sheet that silicone rubber compound preparation same as Example 4 includes release film
Material, specific method are：
A, by 10g neopelexes (HLB value 10.6), 90g enuatrols (HLB value 18, Guangzhou moral rising sun green wood
Material Co., Ltd) it is uniformly mixed with 400g water, 100g ethyl alcohol, surfactant solution is obtained, surfactant solution is coated with
It is complete to moisture evaporation on the surface of PET film (thickness 0.075mm), toasting 30min at 60 DEG C, release layer is formed, it is cold
But to room temperature, release film is obtained, the amount of release film upper surface activating agent is 0.28g/m2, wherein after surfactant compound
HLB value is 17.26；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, and release layer is made to be contacted with mixture, then roll compound, mixture is made to form layer of silica gel between two release films,
85 DEG C solidification 10min, obtain include release film organosilicon composite sheet, thickness 2.15mm, according to standard ASTM D2240
The shore OO hardness for testing layer of silica gel is 78.
Embodiment 7
The present embodiment is using the organosilicon composite sheet that silicone rubber compound preparation same as Example 4 includes release film
Material, specific method are：
A, 50g lauryl sodium sulfate (HLB value 40) and 500g water are uniform, obtain surfactant solution, by surface
Activator solution is coated on the surface of PET film (thickness 0.075mm), and at 70 DEG C, baking 20min is complete to moisture evaporation,
Release layer is formed, is cooled to room temperature, obtains release film, the amount of release film upper surface activating agent is 0.23g/m2。
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, and release layer is made to be contacted with mixture, then roll compound, mixture is made to form layer of silica gel between two release films,
85 DEG C solidification 10min, obtain include release film organosilicon composite sheet, thickness 2.15mm, according to standard ASTM D2240
The shore OO hardness for testing layer of silica gel is 78.
Embodiment 8
The present embodiment is using the organosilicon composite sheet that silicone rubber compound preparation same as Example 4 includes release film
Material, specific method are：
A, 50g diethylene glycols monolaurate (HLB value 5.1, Wuhan Yuancheng Technology Development Co., Ltd.), 50g is poly-
Ethylene oxide monoleate (HLB value 11.4, Nantong MICHAEL DRAKE Chemical Co., Ltd.) is uniformly mixed with 100g water and 400g ethyl alcohol,
Surfactant solution is obtained, surfactant solution is coated on the surface of PET film (thickness 0.075mm), 70
DEG C baking 20min it is complete to moisture evaporation, formed release layer, be cooled to room temperature, obtain release film, release film upper surface activating agent
Amount be 0.23g/m2, wherein the HLB value after surfactant compound is 8.25；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, and release layer is made to be contacted with mixture, then roll compound, mixture is made to form layer of silica gel between two release films,
85 DEG C solidification 10min, obtain include release film organosilicon composite sheet, thickness 2.15mm, according to standard ASTM D2240
The shore OO hardness for testing layer of silica gel is 78.
Embodiment 9
The present embodiment is using the organosilicon composite sheet that silicone rubber compound preparation same as Example 4 includes release film
Material, specific method are：
A, by 50g trihydroxy ethylamine oleate soaps DX1898 (HLB value 12, Guangzhou De Xu new materials Co., Ltd), 50g polyoxies
Ethylene sorbitan fatty acid ester T-60 (HLB value 14.9, Shanghai Bei Ke Chemical Co., Ltd.s) and 200g water and 300g second
Alcohol is uniformly mixed, and obtains surfactant solution, surfactant solution is coated on PET film (thickness 0.075mm)
On surface, at 70 DEG C, baking 20min is complete to moisture evaporation, forms release layer, is cooled to room temperature, obtains release film, release film
The amount of upper surface activating agent is 0.23g/m2, wherein the HLB value after surfactant compound is 13.45；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, and release layer is made to be contacted with mixture, then roll compound, mixture is made to form layer of silica gel between two release films,
85 DEG C solidification 10min, obtain include release film organosilicon composite sheet, thickness 2.15mm, according to standard ASTM D2240
The shore OO hardness for testing layer of silica gel is 78.
Embodiment 10
The present embodiment is using the organosilicon composite sheet that silicone rubber compound preparation same as Example 4 includes release film
Material, specific method are：
A, by 50g enuatrols (HLB value 18, Jinan leap Chemical Co., Ltd.), 50g potassium oleates (HLB value 20, extensively
Up to the prosperous industrial chemicals of China) it is uniformly mixed with 700g water, surfactant solution is obtained, surfactant solution is coated on PET
On the surface of film (thickness 0.075mm), at 70 DEG C, baking 20min is complete to moisture evaporation, forms release layer, is cooled to room
Temperature, obtains release film, and the amount of release film upper surface activating agent is 0.23g/m2, wherein the HLB value after surfactant compound is
19；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, by mixture be placed in two release films it
Between, and release layer is made to be contacted with mixture, then roll compound, mixture is made to form layer of silica gel between two release films,
85 DEG C solidification 10min, obtain include release film organosilicon composite sheet, thickness 2.15mm, according to standard ASTM D2240
The shore OO hardness for testing layer of silica gel is 78.
Comparative example
Comparison sheet is prepared, in silicone rubber compound, the organopolysiloxane containing vinyl is α, ω-divinyl poly- two
Methylsiloxane is 4000mPas in 25 DEG C of viscositys, and the mass percentage of vinyl is 0.5%；Heat filling is average
The aluminium oxide in mass ratio 2 that the aluminium oxide and average grain diameter that grain size is 3 μm are 50 μm：3 are mixed to get；Crosslinking agent is methyl hydrogen
Silicone oil, 25 DEG C of viscositys are 300mPas, and hydrogen content is 0.07% (quality), and platinum-type catalyst is platinum catalyst.
The preparation method of comparison sheet is：The component for being included by silicone rubber compound mixes, and obtains mixture, will mix
Object is placed between two silicon release films (Jin Heng bright 1~3g, thickness 0.075mm), and makes surface of the silicon release film containing mould release
It is contacted with mixture, then rolls compound, mixture is made to form layer of silica gel between two silicon release films, cured at 85 DEG C
10min, obtain include release film organosilicon composite sheet, thickness 2.0mm tests layer of silica gel according to standard ASTM D2240
Shore OO hardness be 78.
Testing example
The organosilicon sheet material prepared to Examples 1 to 10 and comparative example is tested for the property, and test method is with reference to GB/
T 2792-2014《The test method of adhesive tape peel strength》It carries out, the 180 ° of strippings tested between release film and layer of silica gel are strong
Degree, test data are shown in Table 2.
2 peel strength test data of table
| Sample | Peel strength (N/cm) |
| Embodiment 1 | 0.0128 |
| Embodiment 2 | 0.0072 |
| Embodiment 3 | 0.0048 |
| Embodiment 4 | 0.0036 |
| Embodiment 5 | 0.0097 |
| Embodiment 6 | 0.0056 |
| Embodiment 7 | 0.0136 |
| Embodiment 8 | 0.0083 |
| Embodiment 9 | 0.0163 |
| Embodiment 10 | 0.0144 |
| Comparative example | 0.0520 |
From the data in table 2, it can be seen that release film is prepared by surfactant in the present invention, have to organosilicon material outstanding
Low stripping force, and preparation method is simple, application prospect is wide.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention rather than is protected to the present invention
The limitation of range.It will be understood by those of skill in the art that several deductions can be carried out to technical scheme of the present invention or waited
With replacing, without departing from the spirit and scope of technical solution of the present invention.
Claims (3)
1. including the organosilicon composite sheet of release film, including release film and layer of silica gel, the release film includes ground and attachment
In the release layer of surface of bottom material, the release layer is the thin layer formed by surfactant；
The surfactant is anion surfactant, cationic surfactant, nonionic surfactant and both sexes
The compounding of one or more of surfactant；
Release layer in the release film is contacted with layer of silica gel, the layer of silica gel by include organopolysiloxane containing vinyl,
The component of the silicone rubber compound of crosslinking agent and silicon hydrogenation catalyst is prepared.
2. the organosilicon composite sheet as described in claim 1 for including release film, which is characterized in that by what is included the following steps
It is prepared by method：
A, surfactant is coated on surface of bottom material and forms release layer, obtain release film, or by surfactant solution
It is coated on surface of bottom material, forms release layer after drying and removing solvent, obtain release film；
B, the component for being included by silicone rubber compound mixes, and obtains mixture, between mixture is placed in two release films, makes
Release layer is contacted with mixture, then compound through rolling, and so that mixture is formed layer of silica gel between two release films, is cured, obtain
To the organosilicon composite sheet including release film.
3. the organosilicon composite sheet as described in claim 1 for including release film, which is characterized in that the silicone rubber compound
Including heat filling, the silicon hydrogenation catalyst in the silicone rubber compound is platinum-type catalyst, the rubber composition
Object includes the following component counted in parts by weight：
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717951.5A CN105254912B (en) | 2015-10-28 | 2015-10-28 | Release film, preparation method and the organosilicon composite sheet comprising release film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510717951.5A CN105254912B (en) | 2015-10-28 | 2015-10-28 | Release film, preparation method and the organosilicon composite sheet comprising release film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105254912A CN105254912A (en) | 2016-01-20 |
| CN105254912B true CN105254912B (en) | 2018-09-18 |
Family
ID=55094880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510717951.5A Active CN105254912B (en) | 2015-10-28 | 2015-10-28 | Release film, preparation method and the organosilicon composite sheet comprising release film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105254912B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106046798A (en) * | 2016-07-07 | 2016-10-26 | 昆山汉品电子有限公司 | Uniform-temperature heat-conducting silica gel piece |
| CN106345302A (en) * | 2016-09-28 | 2017-01-25 | 武汉艾科滤膜技术有限公司 | Epoxy resin adhesive release agent for producing ultrafiltration membrane module |
| CN108978331A (en) * | 2017-06-01 | 2018-12-11 | 好丽友食品有限公司 | A kind of release paper for food baking |
| CN111363181A (en) * | 2020-04-26 | 2020-07-03 | 东莞市鼎力薄膜科技有限公司 | Release film for heat-conducting silica gel sheet and preparation method thereof |
| CN114603870A (en) * | 2020-12-08 | 2022-06-10 | 嘉兴国秀环保建材有限公司 | Resin brick and mold release method for pressing resin brick |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285057A (en) * | 2011-05-20 | 2011-12-21 | 深圳市安品有机硅材料有限公司 | Method for continuously forming organosilicon heat-conducting patch |
| CN202192864U (en) * | 2011-08-25 | 2012-04-18 | 江阴市天顺彩印有限公司 | Fluorescent thin film for thermal transfer |
| CN203968554U (en) * | 2014-06-09 | 2014-11-26 | 易脉天成新材料科技（苏州）有限公司 | Biadhesive heat-conducting silica gel sheet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55133960A (en) * | 1979-04-06 | 1980-10-18 | Showa Denko Kk | Laminated film |
-
2015
- 2015-10-28 CN CN201510717951.5A patent/CN105254912B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102285057A (en) * | 2011-05-20 | 2011-12-21 | 深圳市安品有机硅材料有限公司 | Method for continuously forming organosilicon heat-conducting patch |
| CN202192864U (en) * | 2011-08-25 | 2012-04-18 | 江阴市天顺彩印有限公司 | Fluorescent thin film for thermal transfer |
| CN203968554U (en) * | 2014-06-09 | 2014-11-26 | 易脉天成新材料科技（苏州）有限公司 | Biadhesive heat-conducting silica gel sheet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105254912A (en) | 2016-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105254912B (en) | Release film, preparation method and the organosilicon composite sheet comprising release film | |
| CN101432366B (en) | A liquid silicone rubber composition for forming breathable coating film on a textile and process for forming a breathable coating film on a textile | |
| CA1174394A (en) | Silicone release coatings and inhibitors | |
| CN102498174B (en) | Silicone gel seal and method for its preparation and use | |
| CN1007730B (en) | Method for imparing releasability to a substrate surface | |
| JPS6146496B2 (en) | ||
| CN105980498B (en) | Can photoactivation hydrosilylation inhibition system | |
| CN1926195A (en) | Latex composition for silicon rubber sponge, preparing method thereof and method for producing silicon rubber sponge | |
| CN110577661B (en) | Silicone membrane, heat-conducting silicone sheet and preparation method thereof | |
| CN109263210A (en) | A kind of Multifunctional silica gel protective film | |
| CN107312496B (en) | Adhesive addition type liquid silicone rubber | |
| GB1599209A (en) | Silicone compositions containing colloidal silica | |
| CA2183299A1 (en) | Silicone water-based emulsion mold release agent and a manufacturing method therefor | |
| CN105131859B (en) | Organosilicon composite sheet with surface viscosity | |
| CN106832809B (en) | High-resistance anti-ultraviolet environment friendly PET composite soft packaging material and preparation method thereof | |
| CN102898883B (en) | Coating composition, use the method for its coated material surface and there is the material that its surface processes | |
| CN107323020A (en) | A kind of silastic polymer weatherability leather and preparation method thereof | |
| CN110172831A (en) | A kind of hydrophilic afterfinish method of fabric | |
| JP2612979B2 (en) | Cover and packing assembly for hard disk drive | |
| CN108102115A (en) | A kind of preparation method of polysiloxane emulsion | |
| KR100379591B1 (en) | A method for making a catalyzed substrate, a method for making low temperature curable organopolysiloxane coated substrate, and a laminate comprising the coated substrate | |
| CN115090827B (en) | Release agent and preparation method thereof | |
| CN107189669B (en) | A kind of low-surface-energy aqueous polyurethane/nano SiO2Marine anti-pollution coating material and preparation method | |
| TWI771507B (en) | Surface treatment agent, metal material with surface treatment film, and method for producing the same | |
| CN1824886A (en) | Clothes stiff and smooth ironing assistant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |